Which is true about electromagnets?
Select the correct response:
1. Increasing the battery makes the electromagnetweaker.
2. Increasing the number of coils makes the electromagnet stronger.
3. They dont need a battery.
4. They are permanent
2. Increasing the number of coils makes the electromagnet stronger.
3. They dont need a battery.
4. They are permanent
Answer:
1. increasing the battery makes the electro magnet weaker.